Pachyveria Plant Named &#39;AMIECH1702&#39;

ABSTRACT

A new and distinct Pachyveria hybrid plant named ‘AMIECH1702’ which is characterized by greyed-green succulent foliage with a blue hue, foliage with is arranged in a compact basal rosette with narrower, more rounded foliage at the center of the rosette and broader, flatter foliage towards the outer foliar whorls of the rosette, and the stability of these characteristics from generation to generation.

Latin name of the genus and species: The Latin name of the genus and species of the novel variety disclosed herein is Echeveria lilacina x Pachyphytum oviferum.

Variety denomination: The inventive variety of Pachyveria hybrid disclosed herein has been given the variety denomination ‘AMIECH1702’.

BACKGROUND OF THE INVENTION

Parentage: ‘AMIECH1702’ is an intergeneric hybrid seedling selection resulting from the controlled pollination of an unnamed Echeveria lilacina plant (not patented), the seed parent, with an unnamed Pachyphytum oviferum plant (not patented), the pollen parent. The crossing was made by the inventor in the spring of 2011 at a commercial greenhouse in Heerhugowaard, the Netherlands. In the summer of 2012, one seedling was observed which exhibited unique growth and foliage characteristics. The seedling was isolated for further evaluation in order to confirm the distinctness and stability of the characteristics first observed. Upon confirmation of distinctness and stability, ‘AMIECH1702’ was selected for commercialization.

Asexual Reproduction: Asexual reproduction of the new cultivar ‘AMIECH1702’, by way of rooting leaf cuttings, was first initiated in the summer of 2013 at the inventor's commercial greenhouse in Heerhugowaard, the Netherlands. Through five subsequent generations, the unique features of this cultivar have proven to be stable and true to type.

SUMMARY OF THE INVENTION

The cultivar ‘AMIECH1702’ has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature, day length, and light intensity, without, however, any variance in genotype. The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘AMIECH1702’. These characteristics in combination distinguish ‘AMIECH1702’ as a new and distinct Pachyveria hybrid cultivar:

-   -   1. ‘AMIECH1702’ exhibits succulent foliage arranged in a compact         basal rosette with narrower, more rounded foliage at the center         of the rosette and broader, flatter foliage towards the outer         foliar whorls of the rosette; and     -   2. ‘AMIECH1702’ exhibits moderately glaucous, greyed-green         foliage with a blue hue; and     -   3. ‘AMIECH1702’ foliage with an acute to acuminate apex with         margins towards the apex are very slightly crenate to sinuate.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 illustrates, as nearly true as it is reasonably possible to make the same in color photographs of this type, an exemplary plant of ‘AMIECH1702’ grown in a commercial greenhouse in Heerhugowaard, the Netherlands. This plant is approximately 10 months old, shown planted in a 12 cm container.

FIG. 2 illustrates, as nearly true as it is reasonably possible to make the same in color photographs of this type, the typical foliage arrangement of ‘AMIECH1702.

FIG. 3 illustrates, as nearly true as it is reasonably possible to make the same in color photographs of this type, the adaxial surface of the mature foliage ‘AMIECH1702’.

FIG. 4 illustrates, as nearly true as it is reasonably possible to make the same in color photographs of this type, the abaxial surface of the mature foliage ‘AMIECH1702’.

BOTANICAL DESCRIPTION OF THE PLANT

The following observations and measurements made in January of 2018 describe averages from a sample set of six specimens of 10 months old ‘AMIECH1702’ plants grown in 12 cm nursery containers at commercial greenhouse in Heerhugowaard, the Netherlands. Plants were produced using conventional greenhouse production protocols for Pachyveria plants which consisted of minimal irrigation and fertilizer applications, and chemical pest and disease control measures against mealy bug and Botrytis as required. Plants were grown under approximately 50 percent shade after propagation and later exposed to full sun once they began to mature. No photoperiodic treatments or artificial light was given to the plants.

Those skilled in the art will appreciate that certain characteristics will vary with older or, conversely, with younger plants. ‘AMIECH1702’ has not been observed under all possible environmental conditions. Where dimensions, sizes, colors and other characteristics are given, it is to be understood that such characteristics are approximations or averages set forth as accurately as practicable. The phenotype of the variety may differ from the descriptions set forth herein with variations in environmental, climatic and cultural conditions. Color notations are based on The Royal Horticultural Society Colour Chart, The Royal Horticultural Society, London, 2015 (sixth edition).

A botanical description of ‘AMIECH1702’ and comparisons with the parent plants and closest known comparator are provided below.

-   Plant description:     -   -   Growth habit.—Succulent perennial with foliage growing in a             non-branched basal rosette.         -   Plant shape.—Flattened globular.         -   Height from soil level to top of foliar plane.—7.1 cm.         -   Plant spread.—Average of 10.0 cm.         -   Growth rate.—Low to moderate.         -   Plant vigor.—Low to moderate.         -   Propagation.—Type — Leaf cuttings. Time to initiate rooting             — Approximately 21 to 35 days at 18 degrees Celsius. Crop             time — Approximately 18 to 22 weeks to produce a marketable             plant in a 7 cm container.         -   Disease and pest resistance or susceptibility.—Neither             resistance nor susceptibility to typical Pachyveria pests             and diseases has been observed.         -   Environmental tolerances.—Adapt to, at least, USDA Zones 10             to 12 and temperatures as high as 40 degrees Celsius;             moderate tolerance to rain yet drought tolerant once             established; high tolerance to wind. -   Root system:     -   -   General.—Fine, well-branched fibrous roots. -   Stems:     -   -   Branching habit.—Leaves in a non-branching basal rosettes;             no main branches or lateral branches present. -   Foliage:     -   -   Arrangement.—Rosette.         -   Division.—Simple.         -   Attachment.—Sessile.         -   Quantity.—Approximately 25 leaves per rosette.         -   Shape.—Thick, succulent leaves which are spatulate to             obovate.         -   Dimensions.—5.9 cm long, 3.2 cm wide, and 1.0 cm thick, on             average.         -   Aspect.—Very slightly concave and slightly curved upward.         -   Attitude.—Upright.         -   Apex.—Acute to apiculate.         -   Base.—Cuneate.         -   Margin.—Entire except near the apex which is very slightly             crenate to sinuate; not undulated or lobed.         -   Pubescence, texture and luster of the adaxial             surface.—Glabrous, smooth, and matte; lightly to moderately             glaucous.         -   Pubescence, texture and luster of the abaxial             surface.—Glabrous, smooth, and matte; lightly to moderately             glaucous.         -   Color.—Juvenile foliage, adaxial surface — Yellow-green,             nearest to RHS 148D, and fading to in between yellow-green             and greyed-green towards the base, nearest to in between RHS             145C and 193C; the epicuticular glaucous wax covering the             leaf surface is greyed-green, nearest to RHS 188D. Juvenile             foliage, abaxial surface — Yellow-green, nearest to RHS             148D, and fading to in between yellow-green and greyed-green             towards the base, nearest to in between RHS 145D and 193D;             the epicuticular glaucous wax covering the leaf surface is             greyed-green, nearest to RHS 188D. Mature foliage, adaxial             surface — Yellow-green, nearest to RHS 148B, and fading to             greyed-green towards the base, nearest to RHS 195B; the             epicuticular glaucous wax covering the leaf surface is             greyed-green, nearest to RHS 188D. Mature foliage, abaxial             surface — Yellow-green, nearest to RHS 148B, and fading to             greyed-green towards the base, nearest to RHS 194B; the             epicuticular glaucous wax covering the leaf surface is             greyed-green, nearest to RHS 188D. Venation — No venation is             visible.         -   Petiole.—No petiole; leaves are sessile. -   Inflorescence: No flowering has been observed to date.

COMPARISONS WITH THE PARENT PLANT AND CLOSEST KNOWN COMPARATOR

Plants of the new cultivar ‘AMIECH1702’ differ from the seed parent, an unnamed Echeveria lilacina plant (not patented), in the following characteristics described in Table 1 below.

TABLE 1 Echeveria lilacina Characteristic ‘AMIECH1702’ seed parent. Plant size. Larger than the Smaller than seed parent. ‘AMIECH1702’. Foliage thickness. Thicker and more Thinner and flatter than rounded than the ‘AMIECH1702’. seed parent. General coloration Greyed-green with White with a lilac hue. of the foliage. a blue hue.

Plants of the new cultivar ‘AMIECH1702’ differ from the pollen parent, an unnamed Pachyphytum oviferum plant (not patented), in the following characteristics described in Table 2 below.

TABLE 2 Pachyphytum oviferum Characteristic ‘AMIECH1702’ pollen parent. Branching habit. Leaves in a non- Leaves in a basal rosettes, branching basal eventually forming a short, rosettes; no stem unbranched stem with age. present. Foliage cross- Thinner and flatter Thicker and more rounded section. than the parent. than ‘AMIECH1702’. Foliage apex. Acute to acuminate. Obtuse.

COMPARISONS WITH THE CLOSEST KNOWN COMPARATOR

Plants of the new cultivar ‘AMIECH1702’ differ from the closest known commercial comparator, the common form of the species Echeveria hookeri (not patented), in the following characteristics described in Table 3 below.

TABLE 3 Characteristic ‘AMIECH1702’ Echeveria hookeri Plant size. Larger than Echeveria Smaller than hookeri. ‘AMIECH1702’. General coloration Greyed-green with a Blue-green. of the foliage. blue hue. Foliage cross-section. Broader and more Narrower and more flattened than Echeveria rounded than hookeri. ‘AMIECH1702’. 

That which is claimed is:
 1. A new and distinct variety of Echeveria lilacina x Pachyphytum oviferum hybrid plant named ‘AMIECH1702’, substantially as described and illustrated herein. 